kubernetes/vendor/github.com/google/cel-go/common/types/pb/equal.go

// Equal returns whether two proto.Message instances are equal using the following criteria:
//
//   - Messages must share the same instance of the type descriptor
//   - Known set fields are compared using semantics equality
//     - Bytes are compared using bytes.Equal
//     - Scalar values are compared with operator ==
//     - List and map types are equal if they have the same length and all elements are equal
//     - Messages are equal if they share the same descriptor and all set fields are equal
//   - Unknown fields are compared using byte equality
//   - NaN values are not equal to each other
//   - google.protobuf.Any values are unpacked before comparison
//   - If the type descriptor for a protobuf.Any cannot be found, byte equality is used rather than
//     semantic equality.
//
// This method of proto equality mirrors the behavior of the C++ protobuf MessageDifferencer
// whereas the golang proto.Equal implementation mirrors the Java protobuf equals() methods
// behaviors which needed to treat NaN values as equal due to Java semantics.
func Equal(x, y proto.Message) bool { … }

func equalMessage(mx, my protoreflect.Message) bool { … }

func equalField(fd protoreflect.FieldDescriptor, x, y protoreflect.Value) bool { … }

func equalMap(fd protoreflect.FieldDescriptor, x, y protoreflect.Map) bool { … }

func equalList(fd protoreflect.FieldDescriptor, x, y protoreflect.List) bool { … }

func equalValue(fd protoreflect.FieldDescriptor, x, y protoreflect.Value) bool { … }

func equalUnknown(x, y protoreflect.RawFields) bool { … }

func isAny(m protoreflect.Message) bool { … }